Answer the following multipule choice:

1.) Viruses can infect _____.

Select one:

a. animals

b. plants

c. bacteria

d. All are able to be infected by viruses

2.)The reason for differences in the sets of proteins
expressed in a nerve and a pancreatic cell of the same individual
is that nerve and pancreatic cells contain different _____.

Select one:

a. sets of regulatory proteins

b. promoters

c. regulatory sequences

d. genes

3.)The release factor (RF) _____.

Select one:

a. releases the amino acid from its tRNA to allow the
amino acid to form a peptide bond

b. binds to the stop codon in the A site in place of a
tRNA

c. supplies a source of energy for termination of
translation

d. releases the ribosome from the ER to allow
polypeptides into the cytosol

4.)Translation requires _____.

Select one:

a. mRNA, tRNA, DNA, and rRNA

b. mRNA, tRNA, and rRNA

c. mRNA, tRNA, and DNA

d. mRNA, DNA, and rRNA

5.) Viruses can cause _____.

Select one:

a. both diseases and cancers.

b. only diseases

c. only cancers

d. neither diseases nor cancers.

6.) Viruses _____.

Select one:

a. use the host cell to copy themselves and make viral
proteins

b. manufacture their own ATP, proteins, and nucleic
acids

c. use the host cell to copy themselves and then
viruses synthesize their own proteins

d. metabolize food and produce their own ATP

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